Digital 16bit Serial Output Type Ambient Light Sensor IC - BH1726NUC

BH1726NUC is a digital Ambient Light Sensor IC with I²C bus interface. This IC is most suitable for obtaining ambient light data for adjusting LCD and backlight power of TV and mobile phone. It is capable of detecting a very wide range of illuminance.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BH1726NUC-E2 Active WSON008X2120 4000 4000 Taping Yes
Sensor Type Digital ALS
Vcc(Min.)[V] 2.3
Vcc(Max.)[V] 3.6
Output Type I2C
illuminance Measurement Range[lx] 0 to 30, 000
Sensitivity Variations[%] ±15
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • Built-in Ircut filter
    • 2 outputs with different spectral response
    • Correspond to dark window because of high sensitivity
    • Rejecting 50Hz/60Hz light noise
    • I²Cbus interface (f/s mode support)
    • It is possible to select 2 type of I²C bus slave address.
    • Correspond to 1.8V logic interface
    • Resolution 0.0003lx/count (Typ)
      (In highest gain and longest measurement time setting)
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

NE Handbook Series

Sensor Networks